diff --git a/cmd/fdroidcl/install.go b/cmd/fdroidcl/install.go
index e945d07..d56597c 100644
--- a/cmd/fdroidcl/install.go
+++ b/cmd/fdroidcl/install.go
@@ -32,10 +32,10 @@ func runInstall(args []string) {
 			log.Fatalf("%s is already installed", app.ID)
 		}
 	}
-	downloadAndInstall(apps, device)
+	downloadAndDo(apps, device, installApk)
 }
 
-func downloadAndInstall(apps []*fdroidcl.App, device *adb.Device) {
+func downloadAndDo(apps []*fdroidcl.App, device *adb.Device, doApk func(*adb.Device, *fdroidcl.Apk, string)) {
 	type downloaded struct {
 		apk  *fdroidcl.Apk
 		path string
@@ -50,7 +50,7 @@ func downloadAndInstall(apps []*fdroidcl.App, device *adb.Device) {
 		toInstall[i] = downloaded{apk: apk, path: path}
 	}
 	for _, t := range toInstall {
-		installApk(device, t.apk, t.path)
+		doApk(device, t.apk, t.path)
 	}
 }
 
@@ -62,3 +62,12 @@ func installApk(device *adb.Device, apk *fdroidcl.Apk, path string) {
 	}
 	fmt.Println("done")
 }
+
+func upgradeApk(device *adb.Device, apk *fdroidcl.Apk, path string) {
+	fmt.Printf("Upgrading %s... ", apk.App.ID)
+	if err := device.Upgrade(path); err != nil {
+		fmt.Println()
+		log.Fatalf("Could not upgrade %s: %v", apk.App.ID, err)
+	}
+	fmt.Println("done")
+}
diff --git a/cmd/fdroidcl/upgrade.go b/cmd/fdroidcl/upgrade.go
index c965009..334bc7d 100644
--- a/cmd/fdroidcl/upgrade.go
+++ b/cmd/fdroidcl/upgrade.go
@@ -24,10 +24,13 @@ func runUpgrade(args []string) {
 	apps := findApps(args)
 	inst := mustInstalled(device)
 	for _, app := range apps {
-		_, e := inst[app.ID]
+		p, e := inst[app.ID]
 		if !e {
 			log.Fatalf("%s is not installed", app.ID)
 		}
+		if p.VCode >= app.CVCode {
+			log.Fatalf("%s is up to date", app.ID)
+		}
 	}
-	downloadAndInstall(apps, device)
+	downloadAndDo(apps, device, upgradeApk)
 }